Systems and methods for making and using contact assemblies for leads of electrical stimulation systems
First Claim
1. A contact assembly of an electrical stimulation lead, the contact assembly comprising:
- a cylindrical contact assembly body formed from an electrically-nonconductive, molded material, the contact assembly body having a first end, a second end, a longitudinal length, a circumference, and an outer side surface, wherein the first end of the contact assembly body is configured and arranged for coupling to an end of a lead body of an electrical stimulation lead;
a plurality of side ports defined along the outer side surface of the contact assembly body, wherein each side port of the plurality of side ports is longitudinally and circumferentially offset from the remaining side ports of the plurality of side ports along the longitudinal length of the contact assembly;
a plurality of conductor lumens defined along the contact assembly body, wherein each of the conductor lumens extends from the first end of the contact assembly body and terminates with a different one of the side ports of the plurality of side ports such that each of the plurality of conductor lumens has a different length than every other of the conductor lumens; and
a stylet lumen defined along the contact assembly body, the stylet lumen having a closed end, wherein the stylet lumen extends longitudinally from the first end of contact assembly body and terminates at the closed end.
1 Assignment
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Accused Products
Abstract
A contact assembly of an electrical stimulation lead includes a body formed from an electrically-nonconductive, molded material. A first end of the body is configured for coupling to an end of an electrical stimulation lead. Side ports are defined along an outer side surface of the body. Each side port is longitudinally offset from the remaining side ports along a longitudinal length of the contact assembly. Conductor lumens are defined along the body. Each of the conductor lumens extends from the first end of the body and terminates with a different one of the side ports such that each of the conductor lumens has a different length than every other of the conductor lumens. A stylet lumen having a closed end is defined along the body. The stylet lumen extends longitudinally from the first end of body and terminates at the closed end.
21 Citations
20 Claims
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1. A contact assembly of an electrical stimulation lead, the contact assembly comprising:
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a cylindrical contact assembly body formed from an electrically-nonconductive, molded material, the contact assembly body having a first end, a second end, a longitudinal length, a circumference, and an outer side surface, wherein the first end of the contact assembly body is configured and arranged for coupling to an end of a lead body of an electrical stimulation lead; a plurality of side ports defined along the outer side surface of the contact assembly body, wherein each side port of the plurality of side ports is longitudinally and circumferentially offset from the remaining side ports of the plurality of side ports along the longitudinal length of the contact assembly; a plurality of conductor lumens defined along the contact assembly body, wherein each of the conductor lumens extends from the first end of the contact assembly body and terminates with a different one of the side ports of the plurality of side ports such that each of the plurality of conductor lumens has a different length than every other of the conductor lumens; and a stylet lumen defined along the contact assembly body, the stylet lumen having a closed end, wherein the stylet lumen extends longitudinally from the first end of contact assembly body and terminates at the closed end. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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5. An electrical stimulation lead, comprising:
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a contact assembly comprising a contact assembly body formed from an electrically-nonconductive, molded material, the contact assembly body having a first end, a second end, a longitudinal length, a circumference, and an outer side surface, wherein the first end of the contact assembly body is configured and arranged for coupling to an end of a lead body of an electrical stimulation lead, a plurality of side ports defined along the outer side surface of the contact assembly body, wherein each side port of the plurality of side ports is longitudinally offset from the remaining side ports of the plurality of side ports along the longitudinal length of the contact assembly, a plurality of conductor lumens defined along the contact assembly body, wherein each of the conductor lumens extends from the first end of the contact assembly body and terminates with a different one of the side ports of the plurality of side ports such that each of the plurality of conductor lumens has a different length than every other of the conductor lumens, and a stylet lumen defined along the contact assembly body, the stylet lumen having a closed end, wherein the stylet lumen extends longitudinally from the first end of contact assembly body and terminates at the closed end; and a lead body having a distal end portion, a proximal end portion, and a longitudinal length, wherein the first end of the contact assembly is coupled to the distal end portion of the lead body; a plurality of longitudinally-spaced-apart electrodes disposed over the contact assembly body, wherein each of the plurality of electrodes is disposed over a different side port of the plurality of side ports of the contact assembly; a plurality of terminals coupled to the proximal end portion of the lead body; and a plurality of conductors electrically coupling the plurality of terminals to the plurality of electrodes; and a plurality of longitudinally-spaced-apart non-conductive spacers disposed over the contact assembly, and wherein each of the plurality of spacers is flanked by two adjacent electrodes of the plurality of electrodes.
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11. An electrical stimulation lead, comprising:
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a contact assembly comprising a contact assembly body formed from an electrically-nonconductive, molded material, the contact assembly body having a first end, a second end, a longitudinal length, a circumference, and an outer side surface, wherein the first end of the contact assembly body is configured and arranged for coupling to an end of a lead body of an electrical stimulation lead, a plurality of side ports defined along the outer side surface of the contact assembly body, wherein each side port of the plurality of side ports is longitudinally offset from the remaining side ports of the plurality of side ports along the longitudinal length of the contact assembly, a plurality of conductor lumens defined along the contact assembly body, wherein each of the conductor lumens extends from the first end of the contact assembly body and terminates with a different one of the side ports of the plurality of side ports such that each of the plurality of conductor lumens has a different length than every other of the conductor lumens, and a stylet lumen defined along the contact assembly body, the stylet lumen having a closed end, wherein the stylet lumen extends longitudinally from the first end of contact assembly body and terminates at the closed end; a lead body having a distal end portion, a proximal end portion, and a longitudinal length, wherein the first end of the contact assembly is coupled to the distal end portion of the lead body; a plurality of longitudinally-spaced-apart terminals disposed over the contact assembly body, wherein each of the plurality of terminals is disposed over a different side port of the plurality of side ports of the contact assembly; a plurality of electrodes coupled to the distal end portion of the lead body; a plurality of conductors electrically coupling the plurality of terminals to the plurality of electrodes; and a plurality of longitudinally-spaced-apart non-conductive spacers disposed over the contact assembly, wherein each of the plurality of spacers is flanked by two adjacent terminals of the plurality of terminals.
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Specification